Holiday Price War Rages in Real Time

By

Dana Mattioli

Updated Nov. 23, 2012 7:24 p.m. ET

While shoppers jostled and shoved their way through the usual long lines for Black Friday retail deals, a new and more pitched battle was being fought online that promises to redraw how stores plan for their big door-buster specials.

The historical race between e-commerce retailers and their physical-store rivals continues. But in a new development, bricks-and-mortar retailers are turning the tables, using their websites to match...